# PPGTestData vs 0Day

The clearest difference is in-app purchases: PPGTestData at none against 0Day's 2. PPGTestData also leads on iOS requirement (13.0 vs 18.0). 0Day's advantage is update cadence (every 5 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. 0Day sells 2 in-app purchases, starting at $3.99 per month. PPGTestData asks for nothing beyond the download.

PPGTestData ships an update every 3 weeks, 0Day every 5 days. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | PPGTestData | 0Day |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/0day-cve-and-exploit-alerts/id6761655372/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 1 MB | 10 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [HSIN MING HUANG](https://appshunter.io/developer/1449258750) | [Richard Lous](https://appshunter.io/developer/1890695617) |

## What reviewers say

### PPGTestData

[App page](https://appshunter.io/ios/app/ppgtestdata/id6469589965)

**Features:** macOS Compatibility

**In-app purchases:** none


### 0Day

[App page](https://appshunter.io/ios/app/0day-cve-and-exploit-alerts/id6761655372)

Receive immediate alerts for zero-day vulnerabilities, supply chain attacks, and compromised packages relevant to your specific technology stack. Get early warnings before they hit the news cycle, enabling proactive security measures.

**Highlights:** Zero-day vulnerability alerts, Supply chain attack notifications, Compromised package warnings, Stack-aware filtering, Early warning system, Push notifications, Full alert archive

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 0Day Pro | $3.99 | per month |
| 0Day Pro | $29.99 | per year |


## Frequently asked questions

### Is PPGTestData free?

PPGTestData is free to download, with no in-app purchases.

### Is 0Day free?

0Day is free to download, with in-app purchases available.

### Do PPGTestData or 0Day have ads?

Neither PPGTestData nor 0Day shows ads.

### Which is updated more often, PPGTestData or 0Day?

PPGTestData ships an update every 3 weeks, and 0Day every 5 days. Most recently, PPGTestData was updated on October 7, 2026 and 0Day on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*